User: Bacteria live in a variety of locations one of which is the human mouth. Which explanation supports the wide variety of bacteria in the mouth?
A. Accessibility to air cause bacteria to change form.
B. Salivary glands cause mutations in populations of bacteria.
C. Accessibility to nutrients makes the mouth a favorable habitat.
D. Calcium in the teeth provides appropriate pH levels in the mouth.

Weegy: B. mitochondrion User: Which of the following occurs during photosynthesis?
A. CO2 is used to produce water
B. CO2 is absorbed by mitochondria
C. CO2 and H2O are converted to carbohydrates
D. CO2 and H20 are combined into carbonic acid
Weegy: C. CO2 and H2O are converted to carbohydrates (More)

Weegy: This is also called the Krebs cycle or the tricarboxylic acid cycle. When oxygen is present, acetyl-CoA is produced from the pyruvate molecules created from glycolysis. [ Once acetyl-CoA is formed, two processes can occur, aerobic or anaerobic respiration. When oxygen is present, the mitochondria will undergo aerobic respiration which leads to the Krebs cycle. However, if oxygen is not present, fermentation of the pyruvate molecule will occur. In the presence of oxygen, when acetyl-CoA is produced, the molecule then enters the citric acid cycle (Krebs cycle) inside the mitochondrial matrix, and gets oxidized to CO2 while at the same time reducing NAD to NADH. NADH can be used by the electron transport chain to create further ATP as part of oxidative phosphorylation. To fully oxidize the equivalent of one glucose molecule, two acetyl-CoA must be metabolized by the Krebs cycle. Two waste products, H2O and CO2, are created during this cycle. citric acid ] User: The light-independent reactions of photosynthesis are also known as the
A. Calvin cycle.
B. Priestly cycle.
C. Benson cycle.
D. van Helmont cycle.
Weegy: The light-independent reactions of photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose. These reactions occur in the stroma, the fluid-filled area of a chloroplast outside of the thylakoid membranes. [ These reactions take the light-dependent reactions and perform further chemical processes on them. There are three phases to the light-independent reactions, collectively called the Calvin cycle ] User: which one? a b c d Weegy: hi the answer is A. thank you for your question (More)